A tiny, rotund flycatcher found singly in the understory of montane forest from Panama to Peru. Very nondescript plumage: darker olive above with a dull tawny breast and yellowish belly. Looks uniformly brownish in bad light. Usually stays low, where it perches quietly and sallies out to glean insects. Often detected by its snapping sounds and whirring wingbeats. Occurs from around 700–2,000 m, typically lower than Rufous-headed Pygmy-Tyrant but some elevation overlap.